His mother, with his aunt ____ now. 
#40696
A
are doing shopping
B
is doing shopping
C
do shopping
D
does shopping
推荐题目
Mr. Liu __________ for ten minutes.
#38631
A
has left
B
will leave
C
has been away
D
left
Our physics teacher told us that light ________ faster than sound.
#40111
A
travel
B
travels
C
is travelling
D
has travelled